Belt-guide.



0. BERGERS'ON.

BELT GUIDE.

APPLICATION FILED AUG. 8, 1912.

Patented Feb. 10, 1914.

33 Ililli Wizwaea/ cfm COLUMBIA PLANOGRAPH C0" WASHINGTON. D. c,

OLE IBERGERSON, 0]? BIG LAKE, MINNESOTA.

BELT-GUIDE.

Specification of Letters Patent.

Patented Feb. 10, 1914.

Application filed August 8, 1912. Serial No. 714,001.

To all whom, it may concern.-

Be it known that I, OLE Bnnonnson, a citizen of the United States, residing at Big Lake, in the county of Sherburne and State of Minnesota, have invented certain new and useful Improvements in Belt- Guides; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved belt guide and supporting device, adapted for general use, but especially adapted for use in connection with traction engines; and, to the above ends, the invention consists of the novel devices and combi nations of devices, hereinafter described and defined in the claim.

The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a view showing the improved device in end elevation and applied in working position to a portion of a traction engine and, by means of dotted lines, the improved device is shown as the same would appear when turned into an inoperative position; Fig. 2 is a view partly in side elevation and partly in vertical section, taken on the line w -w of Fig. 1, on an enlarged scale; Fig. 3 is a plan view of the parts shown in Fig. 2, some parts being broken away and with some of the exposed parts shown in section; and Fig. at is a detail view in vertical section, taken on the line a2m of Fig. 2.

Of the traction engine illustrated for the purpose of showing the improved device applied in working position, the numeral 1 indicates a portion of the boiler and the numeral 2 indicates the driving pulley over which runs a belt 3.

Referring to the improved belt guide and supporting device, the numeral 4 indicates an L-shaped supporting bracket. The vertical member of this bracket 4 is bent to conform to the shape of the shell of the boiler 1, as shown in Fig. 2, and is detachably secured thereto at its intermediate portion by a nutted bolt 5, and at its upper end by a nut-equipped eye-bolt 6. By reference to Fig. 1, it will be noted that the supporting bracket 4 is attached to the boiler 1 close to the pulley 2, at a point that is easily accessible from within the boiler 1 outward of the adjacent ends of the boiler fines, not shown.

Pivotally mounted on the horizontal meinber of the supporting bracket 4, is a yokelike supporting frame 7, arranged to embrace the lower section of the belt 8. The prongs 8 of this supporting frame extend one above the other and horizontally outward from the boiler 1 and they also extend transversely of the belt 3. Integrally formed with the lower and upper corners of the supporting frame 7, is, respectively, a hinge lug 9 and an anchor bracket 10. The hinge lug 9 extends horizontally away from the lower prongs 8 and forms a continuation thereof. And the anchor lugs 10 extend vertically upward from the intermediate portion of the supporting frame 7 and forms a continuation thereof. The hinge lug 9 rests upon the horizontal member of the supporting bracket 4, and is pivotally secured thereto by a nutted bolt 11.

Pivotally secured to the upper end of the pivot bolt 11 is an upwardly and outwardly projecting brace rod 12. The upper end of the rod 12 is passed through a hole in the anchor lug l0 and is rigidly secured thereto by a pair of opposing clamping nuts 13 having screw threaded engagement with the brace rod 12. In addition to the pivot bolt 11, the supporting frame 7 is further anchored to the supporting bracket 4 by a long horizontally extended eye-bolt 14, connected to the eye-bolt 6 by a link 15 passed through the eyes of the said bolts. The threaded end of the eye-bolt la is passed through a hole in the anchor lug 10 above the brace rod 12, and is anchored thereto by a pair of opposing clamping nuts 16. As shown in Fig. 2, the connection between the eye-bolt 14 and the link 15 is vertically alined with the pivot bolt 11, thereby per mittin free lateral swinging of the improvec device.

Adjust-ably mounted between the prongs 8 of the supporting frame 7 and extending in the same vertical plane therewith, is a horizontally extended supporting roller 17 over which runs the lower section of the belt 3. This belt supporting roller 17 is loosely journaled on the intermediate portion of a yokelike rod 18, the depending prongs of which are passed loosely through a pair of holes 19 in the lower prong 8 of the supporting frame. Having screw threaded engagement with each of the prongs of the rod 18, is a pair of opposing adjusting nuts 20, adapted to engage the opposite faces of the lower prong 8. Cooperating with each of the lower nuts 20 is a lock nut 21. Obvi ously, by adjusting the nuts 20, the prongs of the rod 18 may be raised or lowered, at will, thereby changing the angularity of the belt supporting roller 17 with respect to the prongs 8 of the supporting frame 7. By adjustably mounting the roller 17 with respect to the supporting frame 7, the said roller may be adjusted so as to keep the same in a substantially horizontal position, irrespective of the position of the support to which it is attached.

A pair of vertically extended guiding rollers 22 and 23 are mounted between the prongs 8 of the supporting frame 7, and are located, one at each end of the belt supporting roller 17 in positions to engage the edges of the belt 3 and thereby guide the same as it travels over the roller 17. The belt guiding roller 22 is loosely journaled on a vertically extended nutequipped bolt 2&, passed through the two prongs 8 close to the vertical or intermediate member of the supporting frame 7; and the belt guiding roller 23 is loosely journaled on a vertically extended eye-bolt 25. At its outer end, the lower prong 8 of the supporting frame 7 is bifurcated and the outer end portion of the upper prong 8 thereof is provided with a side notch 26. The eye end of the bolt 25 is pivotally secured between the prongs of the bifurcated end of the lower bar 8 by a pivot pin 27. The upper or free end of the bolt 25 is adapted to be inserted in the notch 26 by a lateral movement thereof. Having screw threaded engagement with the upper end of the eye-bolt 25, is a clamping nut 28 adapted to be turned into engagement with the upper prong 8, and frictionally hold the bolt 25 interlocked therewith.

To further lock the eye-bolt 25 and the roller 23 carried thereby, in operative positions, a flange-equipped lock plate 29 is pivotally secured at 30 to the upper prong S. In the intermediate portion of the lock plate 29, is punched or cut a hole 31 through which the free end of the eye-bolt 25 projects when said lock plate is turned down, as shown by full lines in Fig. 2. In this position of the lock plate 29, its flanges embrace the ends of the prong 8 and thereby plate properly positioned.

To remove the improved device from the belt 3, the lock plate 29 is first turned upward into an inoperative position. The clamping nut 28 is then released eye-bolt 25 removed from the notch 26 and, together with the roller 23, is turned downward on the pivot pin 27. In this position of the roller 28, the improved device is free to be swiiing laterally into a position parallel 6 5 to the boiler 1 and entirely free from the belt To positively lock the improved device, either in an operative or an inoperative position, the hinge lug 9 is provided with a lateral extension,

seat 33 adapted to register with either one of a pair of ain seats 34: formed in the horizontal member Through the pin seat of the supporting bracket 4.

33 and through either one of the pin seats 34, a headed lock pin 32 75 is adapted to be passed. The pin seats 3+1 are located substantially at right angles to each other, thereby holding the device in either of its two extreme positions.

What I claim is The combination with a supporting frame having a pair of horizontal, vertically spaced prongs, of a pair of vertical, laterally spaced belt guiding rollers journaled on said prongs, the ournals of the outer belt 85 guiding roller permitting swinging movement of said roller to and from operative positions, a horizontal belt supporting roller journaled between said belt guiding rollers,

and means securing the ends of the journal 90 for said belt supporting roller to one of said prongs for independent vertical adjustment. In testimony whereof I afiix my signature in presence of two witnesses.

- OLE BERGERSON.

Witnesses EDITH SIMERMAN,

HARRY D. Kineonn.

Copies; of this patent may be obtained for five cents each, by addressing the Commissioner of Iatentr,

Washington, D. C.

hold the said lock and the in which is formed a pin 

